How to get Random Events in Runescape on purpose

Yes, indeed, there is a guide on how to get random events instead of how to avoid getting them :-) Quite an unusual guide, I would say. Of course, there are other ways to get randoms. But what is interesting is that there many players (especially in F2P) who do WANT to get randoms! And it looks like that fancy costumes from randoms is the main reason behind it.